At the end of which period on the geological time scale did the dinosaurs become extinct?

A.
Tertiary

B.
Jurassic

C.
Quaternary

D.
Cretaceous

Question

At the end of which period on the geological time scale did the dinosaurs become extinct?	
 
 A.
Tertiary
 
 B.
Jurassic
 
 C.
Quaternary
 
 D.
Cretaceous

beccaboo333 · Answer

http://pubs.usgs.gov/gip/dinosaurs/extinct.html

anonymous · Answer

thanks can you help my sister with more

beccaboo333 · Answer

sure?

anonymous · Answer

Which type of weather is most likely produced by a cold front?
 
 A.
heavy precipitation and thunderstorms
 
 B.
moderate to heavy precipitation
 
 C.
light to moderate precipitation
 
 D.
no precipitation

beccaboo333 · Answer

http://okfirst.mesonet.org/train/meteorology/Fronts.html Btw it's one question per post. OS policy.